Implements run and states for x86 MacOS (#909)

Co-authored-by: tompro <tomas.prochazka@apertia.cz>

src/core/Cargo.toml

@@ -7,6 +7,7 @@ edition = "2021"
 crate-type = ["staticlib"]
 
 [dependencies]
+bitflags = "2.6.0"
 humansize = "2.1.3"
 libc = "0.2.155"
 obfw = { git = "https://github.com/obhq/firmware-dumper.git", features = ["read", "std"] }

src/core/src/vmm/cpu.rs

@@ -56,6 +56,12 @@ pub trait CpuStates {
 
     #[cfg(target_arch = "x86_64")]
     fn set_ss(&mut self, p: bool);
+
+    #[cfg(target_arch = "aarch64")]
+    fn set_sp(&mut self, v: usize);
+
+    #[cfg(target_arch = "aarch64")]
+    fn set_pc(&mut self, v: usize);
 }
 
 /// Contains information when VM exited.

src/core/src/vmm/linux/cpu.rs

@@ -173,6 +173,16 @@ impl<'a> CpuStates for KvmStates<'a> {
         self.sregs.ss.present = p.into();
         self.sdirty = true;
     }
+
+    #[cfg(target_arch = "aarch64")]
+    fn set_sp(&mut self, v: usize) {
+        todo!()
+    }
+
+    #[cfg(target_arch = "aarch64")]
+    fn set_pc(&mut self, v: usize) {
+        todo!()
+    }
 }
 
 impl<'a> Drop for KvmStates<'a> {

src/core/src/vmm/linux/regs.rs

@@ -25,6 +25,34 @@ pub struct KvmRegs {
     pub rflags: u64,
 }
 
+#[cfg(target_arch = "aarch64")]
+#[repr(C)]
+struct KvmRegs {
+    pub regs: UserPtRegs,
+    pub sp_el1: usize,
+    pub elr_el1: usize,
+    pub sprs: [usize; 5],
+    pub fp_regs: UserFpRegs,
+}
+
+#[cfg(target_arch = "aarch64")]
+#[repr(C)]
+struct UserPtRegs {
+    pub regs: [usize; 31],
+    pub sp: usize,
+    pub pc: usize,
+    pub pstate: usize,
+}
+
+#[cfg(target_arch = "aarch64")]
+#[repr(C)]
+struct UserFpSimdState {
+    pub vregs: [u128; 32],
+    pub fpsr: u32,
+    pub fpcr: u32,
+    pub reserved: [u32; 2],
+}
+
 #[cfg(target_arch = "x86_64")]
 #[repr(C)]
 pub struct KvmSpecialRegs {
@@ -52,6 +80,10 @@ pub struct KvmSpecialRegs {
     pub interrupt_bitmap: [u64; 4],
 }
 
+#[cfg(target_arch = "aarch64")]
+#[repr(C)]
+struct KvmSpecialRegs {}
+
 #[cfg(target_arch = "x86_64")]
 #[repr(C)]
 pub struct KvmSegment {